CAJ | 학술논문

铀矿开采会产生大量的氡排放到大气中，对环境产生一定程度的放射性污染。本文通过建立氡气扩散模型，对矿井排出的氡的污染程度和范围进行了合理的理论估算，讨论在不同的自然条件下选择适当高度的排风口和相应范围内的重点防护区域。计算结果表明：当排风口的选取在高出周围环境20 m以上时，排风口周围氡污染的程度不高，但考虑到经济、矿山地形以及通风条件等因素的影响时，选取排风口的位置和相应的重点防护区域应作最优化分析和设计。
유광개채회산생대량적동배방도대기중，대배경산생일정정도적방사성오염。본문통과건립동기확산모형，대광정배출적동적오염정도화범위진행료합리적이론고산，토론재불동적자연조건하선택괄당고도적배풍구화상응범위내적중점방호구역。계산결과표명：당배풍구적선취재고출주위배경20 m이상시，배풍구주위동오염적정도불고，단고필도경제、광산지형이급통풍조건등인소적영향시，선취배풍구적위치화상응적중점방호구역응작최우화분석화설계。
Large amount of radon is emitted to the atmosphere in uranium mining, which have a certain degree of radioactive pollution to the environment. Through the establishment of the radon diffusion model,the article carried out reasonable theoretical estimates for cal-culating the degree and range of radon pollution caused by uranium mining,and discussed how to select the appropriate height of the exhaust vents and the key protection area within the corresponding neighborhood under different natural conditions. The results show that the radon pollution level is not high around the exhaust vents when the height of the ex-haust vents is 20 meters higher than the surrounding environment. However,given the in-fluences of economy, mining terrain, ventilation conditions and other factors, the analysis and design should be optimized for selecting location of exhaust vents and the correspond-ing key protection areas.